Get userName from userID

To retrieve the username for specific userIDs in a list, you can use the Query.equal function on a user data collection. However, this approach may only be usable on the Server API, not in Flutter. If you are using Appwrite, you can refer to the server-side SDK documentation (in this case, the example provided is for Node.js) at this link: [Server SDK - Users Get](https://appwrite.io/docs/server/users?sdk=nodejs-default#usersGet) Based on the documentation, you can use a function like database.getUserName('userIDStringHere') to get the username for a specific userID.